Name:_____________________________________________ Date:________________________

How People Affect Their World
PAGE 1:
 The world and its wild places are under a lot of pressure. Too many people drive too many cars, use too many pesticides, pollute the air and water, and strip the soil of its nutrients. All of these things make the world unhealthy for all life.
Poison in the Food Chain.
1. How do the poisons first enter the food chain? _______________________________
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2. When the crops are watered, what happens to the poisons?____________
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3. What do the poisons in the water do to the fish?____________________________
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4. Who in the food chain gets the most poison?__________________________________
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5. How many tons of toxic waste do Americans produce in one year?______________________________________________________________________________________________
6. What happens to the sea otters when they try to lick the oil off their fur?________________________________________________________________________________________________
7. A more serious cause of oil polluted water comes from what?__________
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PAGE 2:          Nature can heal itself, if we let it. Read the paragraphs on Page 2 and list five ways in which Scientists and caring volunteers are working to improve our world.
1.___________________________________________________________________________________________________________________________________________________________________________________________________________
2. ___________________________________________________________________________________________________
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3. ___________________________________________________________________________________________________
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4.__________________________________________________________________________________________________________________________________________________________________________________________________________
5. ___________________________________________________________________________________________________
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PAGE 3:            The world is our home. You can help make it safe and clean for your self and the plants and animals you share it with. Read the paragraphs on Page 3 and list 5 ways in which you can help.
1._____________________________________________________________________________________________________
2. ___________________________________________________________________________________________________
3. ___________________________________________________________________________________________________
4. ___________________________________________________________________________________________________
5. __________________________________________________________________________________________________-

PAGE 4:
You can clean up the environment for your self and your animals friends, and create new habitats for them. It does not matter where you live, you can still give an animal a home, even if it is a small one. Read the paragraphs on Page 4 and write down 5 ways you can help nature right in your own yard.

1.___________________________________________________________________________________________________________________________________________________________________________________________________________
2.__________________________________________________________________________________________________________________________________________________________________________________________________________
3. ___________________________________________________________________________________________________
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4. ___________________________________________________________________________________________________
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5. ___________________________________________________________________________________________________
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PAGE 1  THE WORLD IN DANGER
PAGE 2  NATURE CAN HEAL ITSELF
PAGE 3  HOW TO HELP THE WHOLE WORLD
PAGE 4  HOW TO HELP IN YOUR OWN HOME
1. SO THERE WILL BE MORE           UNBLEMISHED, PEST FREE            FRUITS AND VEGETABLES,
FARMERS USE PLANES TO
DUST CROPS WITH POISONS
THAT KILL PESTS AND WEEDS.

2. WHEN THE CROPS ARE WATERED,
THE POISONS SEEP INTO THE RIVERS
AND STREAMS, MAKING THE WATER
DANGEROUS FOR WILDLIFE AND,
ULTIMATELY, FOR HUMANS. MANY
OTHER ANIMALS DIE FROM THE
POISONS MEANT FOR “PESTS”.

3. THE FISH THAT LIVE IN THE
STREAMS EAT TINY POISONED          PLANTS AND ANIMALS. POISONS
FROM THE WATER ARE STORED
IN THEIR BODIES AND WILL
EVENTUALLY KILL THEM.

4. RACCOONS, HERONS, AND OTHER
ANIMALS EAT FISH AND FROGS WITH
POISON IN THEIR BODIES. EACH ANIMAL
THAT IS HIGHER UP ON THE FOOD
CHAIN GATHERS MORE POISON IN ITS
BODY. THOSE AT THE TOP OF THE FOOD
CHAIN GET THE MOST POISON.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Subject: Science      Grade: Third
Unit; Animals       Time: 40 min.
Lesson # 15
How People Affect Their World

Objective: SWBAT- List several ways in which humans harm plants and animals                        through loss of habitat or pollution.
         - List several ways in which humans are trying to help plants              and animals.
         - Construct a feeder to help the birds during winter time.
         - Infer that what we do as humans affects everything in our             surroundings.

Materials: 4 pages of fact sheets from Zoobooks, Sharing the World With Animals,
       observation sheets, 15 slices stale bread with string hangers, 45 slices of        oranges, needle and heavy string, cheerios, cracked nuts, and bird seed.
Procedure: Have students in 5 coop groups. Start lesson by asking what was the last thing we did in Science and then talk about how oil spills harm the environment. Go on to discuss how we as humans can harm or help our world. Explain that we are going to do some research and then follow up with a project that will help our animal friends. Randomly select the first group to make the bird feeders and explain that everyone will get a chance to make one. Hand out the four sheets and rotate groups as they finish each page. Put bird feeders on trees outside classroom windows during recess.
Closure: Go over sheets as a group.
Assessment: Collect sheets and check for accuracy.